Director, Technical Product Marketing

Location: London / London-adjacent, with regular time expected in our London and/or Gloucester offices

Function: Marketing

Reports to: Chief Marketing Officer

Radiant is looking for a Director of Technical Product Marketing to turn our technical advantages into clear, credible, market-facing narratives.

This is an embedded, hands-on role focused on the end-to-end datacenters we build. You will work with infrastructure, product, engineering, solutions, partnerships, and leadership to understand our architecture and explain its value to hyperscaler customers and other technical and business audiences.

Our audience is focused and well understood. Your priority is technical product understanding and original storytelling, with ownership beyond launch checklists, personas, sales decks, or technical documentation. The right candidate will be technically curious, commercially sharp, and an exceptional writer. The successful candidate will be deeply technical in the area of data centers/AI factories and AI infrastructure.

• Own Radiant's technical product narrative across our platform, infrastructure, and market-facing offerings.

• Work with product and engineering to develop positioning, messaging, and product explanations for customers, partners, analysts, executives, and the broader market.

• Explain why we built the technology this way, what breaks at scale, which tradeoffs matter, and what differentiates us. Connect each claim to evidence and a reason for technical buyers to care.

• Write technical blogs, product and solution pages, whitepapers, reference architecture content, case studies, customer stories, launch narratives, technical explainers, executive essays, and long‑form thought leadership.

• Adapt the level of detail for technical buyers, business decision-makers, partners, investors, and industry observers without losing accuracy.

• Work with design, web, product, and marketing teams to make pages clear, technically grounded, and commercially useful.

• Develop the thesis, architecture explanations, proof points, technical arguments, and story arcs behind talks, panels, submissions, keynotes, podcasts, and executive posts.

• The social and communications team may own the opportunity pipeline and distribution cadence. Your role provides the technical substance.

• Ghostwrite corporate and executive content that requires technical depth, product understanding, or strategic market framing.

• This is a public‑facing role requiring excellent communication.

• Build Radiant's library of customer, partner, and product proof with sales, solutions, customer teams, and leadership.

• Capture the original problem, what was deployed, what was difficult, and what changed. Turn the technical and business impact into evidence customers can evaluate and sales can use.

In the first 90 days, you will have built strong working relationships with product and engineering, developed a clear understanding of Radiant's technical architecture and product priorities, and shipped a meaningful set of market‑facing assets.

You will have created a repeatable process for extracting technical stories from the organization and turning them into blogs, web copy, technical narratives, executive content, speaking inputs, and longer‑form assets.

Over time, success means Radiant has a deeper, sharper, more technically credible voice in the market. The website explains the product more clearly, our blogs are technical and differentiated.

• You have 8 - 12+ years of experience in technical product marketing, product marketing, technical content, developer…